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logstash - logstash is a tool for managing events and logs.
Simple Thread - Simple Thread works with startups, and anyone who wants to act like a startup, to design and deliver world-class digital products and services.
rsyslog - Rsyslog is an enhanced syslogd supporting, among others, MySQL, PostgreSQL, failover log...
SplashCollect - Debt collection software built on Microsoft Dynamics 365
Graylog - Graylog is an open source log management platform for collecting, indexing, and analyzing both structured and unstructured data.